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horsena [70]
3 years ago
8

Can someone please explain what I did wrong here? Thank you!

Mathematics
2 answers:
Greeley [361]3 years ago
8 0

Answer:

you didn't do anything wrong who ever said you did is stupid

ioda3 years ago
5 0

The answer is attached.

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Find the area of the figure. Use 3.14 for A.
BARSIC [14]

Answer: I think the answer might be 140 square meters

I really hope this helps!

Step-by-step explanation:

5 0
3 years ago
Question 19: Please help. What is the equation of the line, in slope-intercept form, that is perpendicular to the line with the
alukav5142 [94]

Answer:

the first optionnnnnnn

7 1
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Read 2 more answers
Two standardized​ tests, a and​ b, use very different scales of scores. the formula upper a equals 40 times upper b plus 50a=40×
Leona [35]
Adding (or subtracting) a constant to every data value adds (or subtracts) the same constant to measures of position such as center,percentiles, max or min.

Its shape and spread such as range, IQR, standard deviation remain unchanged.
When we multiply (or divide) all the data values by any constant, all measures of position (such as the mean, median, and percentiles) and measures of spread (such as the range, the IQR, and the standard deviation) are multiplied (or divided) by that same constant.
Part A:

The lowest score is a measure of location, so both addition and multiplying the lowest score of test B by 40 and adding 50 to the result will affect the lowest score of test A.

Thus, the lowest score of test A is given by 40(21) + 50 = 890

Therefore, the lowest score of test A is 890.



Part B:

The mean score is a measure of location, so both addition and multiplying the mean score of test B by 40 and adding 50 to the result will affect the lowest score of test A.

Thus, the mean score of test A is given by 40(29) + 50 = 1,210

Therefore, the mean score of test A is 890.



Part C:

The standard deviation is a measure of spread, so multiplying the standard deviation of test B by 40 will affect the standard deviation but adding 50 to the result will not affect the standard deviation of test A.

Thus, the standard deviation of test A is given by 40(2) = 80

Therefore, the standard deviation of test A is 80.



Part D

The Q3 score is a measure of location, so both addition and multiplying the Q3 score of test B by 40 and adding 50 to the result will affect the Q3 score of test A.

Thus, the Q3 score of test A is given by 40(28) + 50 = 1,170

Therefore, the Q3 score of test a is 1,170.



Part E:

The median score is a measure of location, so both addition and multiplying the median score of test B by 40 and adding 50 to the result will affect the median score of test A.

Thus, the median score of test A is given by 40(26) + 50 = 1,090

Therefore, the median score of test A is 1,090.



Part F:

The IQR is a measure of spread, so multiplying the IQR of test B by 40 will affect the IQR but adding 50 to the result will not affect the IQR of test A.

Thus, the IQR of test A is given by 40(6) = 240

Therefore, the IQR of test A is 240.
6 0
3 years ago
Need answer ASAP pls
jarptica [38.1K]

Answer:

Distance(PQ)=\sqrt{113}

Step-by-step explanation:

In coordinate geometry distance between the two points can be find by using the distance formula:

For two points :

            (x_1,y_1)\\and \\(x_2,y_2)

Distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

For points: P(3,-1) and Q(-5,6)

Distance (PQ):

                    =\sqrt{(-5-3)^2+(6-(-1))^2} \\\\=\sqrt{(-8)^2+(6+1)^2}\\\\ =\sqrt{(-8)^2+(7)^2} \\\\=\sqrt{64+49}\\\\Distance(PQ) =\sqrt{113}\\\\

5 0
3 years ago
If f : N → N be defined by f = {(x,y) : y = x - 2, x ∈ N and x ≤ 6) , find domain and range of the function.
attashe74 [19]

Answer:

its -3x+56=78 your welcome

Step-by-step explanation:

8 0
3 years ago
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